Utility surveys are becoming increasingly popular in the construction industry and are now becoming set standard to be undertaken before any works can commence.
What is a Utility Survey?
A utility survey is conducted to find any and all services within an area. Services that can be found are Water, Gas pipes, Electric (HV and LV), Communications (BT, CATV various others) Traffic signals, Fuel lines, Drainage and Heating pipes.
How is a Utility Survey completed?
A utility survey is carried out by using various methods of locating equipment. A locator and signal generator is most commonly used to find services, also know in the industry as a CAT & Genny. This method is called EML, where the surveyor connects onto or clamps service points such as lampposts, water valves or metallic cabling to trace the direction and depth of the relevant services. This is used throughout the duration of the survey. The locator also allows for finding power and metallic objects during sweeps which can then be inducted using the genny if unable to connect directly onto the service.
Once the EML stage has been completed and all services with this method have been found GPR is then used to find any additional services which may be present in the area but are not able to be found with the methods described above.
If required after the survey is completed a technical drawing can be created using AutoCAD. The marks can be picked up onsite using a Total Station or GPS unit to pinpoint the location of the services found. Road markings, kerb lines and building outlines and other street furnishings can also be picked up to give a more detailed perspective of the area and the services located.
Why have a Utility Survey?
The need for a utility survey can be done for many reasons, one of the biggest reasons is safety. Having a utility survey done and knowing what services lie in the area around the works is advantageous to help prevent strikes from occurring and causing damage to services with high cost call outs, repairs, possible fines and most importantly preventing injury or deaths to the workers on site. Additional reasons may be adding new services into an area or connect to existing services already there or possibly just update existing service records.
Whatever the reason we are here to help.